<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <button @click="counter += 1">{{counter}}</button>
    </div>
    <script src="./node_modules/vue/dist/vue.js"></script>
    <script>
        let vm =new Vue({
            el:"#app",
            data:{
                counter:1
                //普通vue的修改状态没有提交数据没有记录
            }
        })
    </script>
    
</body>
</html>